Roller bearing for sliding doors



March 1,1927. 1 1,619,443

L. SUTKER ROLLER BEARING FOR SLIDING DOORS Filed Dec. 16, 1925 INVENTOR a ATTORNEY Patented Mar. 1, 1927.

UNITED STATES LOUIS SUTKER, or BROOKLYN, NEW YORK.

ROLLER- BEARlNG FOR SLIDING DOORS.

Application filed December 16, 1925.

This invention relates to anti-friction devices such as roller lJGtlllllf More particularly the invention is directed to a sliding door construction having an improved roller bearing upon which the doors are s said bearing being especiallv a \ml fUi' slidably moimting the door closure oi show and wall caves, a poses.

lo runong the objects ot the invention is; the provision of an improved device ot the clnir-- aci'er described comprising few and simple parts, which shall be easy and cheap to mainitacture, durable. and iractical and eticient to a high degree.

Other objects of this invention will in part be obvious and in part hereinafter pointed out.

The invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in the construction hereinafter described, and of which the scope of application will be indicated in the following claims.

In the accompanying drawing, in which is shown one of the various possible illustrative embodiments of this invention,

Fig. 1 is a cross-sectional View of a fraginentary portion of a show case showing the sliding doors mounted on roller bearings embodying the invention;

F ig. 2 is a fragmentary perspective view showing sliding doors supported on the improved roller bearing;

Fig. 3 is a cross-sectional view taken on *line 33 in Fig. 2; and

Fig. 4 is a cross-sectional view showing a modified construction of the roller bearing.

Referring in detail to the drawing, 10 denotes a fragmentary show or wall case which may be of any well known construction and is seen to include a supporting base 11 having a runway 11*. A track member 12 is secured to extend through said runway. and door closures 13 and 14 are mounted for sliding movement along said track member 12, said closures preferably being made of plate glass constructed with metallic channel edge-bindings 15. The case 10 is also provided with a top frame 16 having a groove 16 extending parallel to said run-.

way 11, and a partition spacer 17 is fastened in said groove for guiding the upper channel-bound edge portions 13 and 14 of up period,

d for other similar pur-' Serial No. 75,690.

the closures 13 and 14 respectively as shown in Fig. 1.

The track member 12 and partition spacer 17 may each be 01 any suitable construction and. are here shown to be made or" sheet metal .60 of T-shapcd cross-section having doublefolded central ribs12 and 17 and outwardly extending flanges 12" and 17". respectively, ribs being adapted to separately guide h door closure in its sliding movement, as v. ill be well understood.

To reduce the wear and sliding friction between the door closures l3 and 1-l on the track memher12, a. roller bearing 18cml'iodying the invention is interposed between each lower channel-bound edge 13 and 14" of the closures 13 and 14 respectively, and an outwardly extending flange 12 of the track -member 12, as shown in Figs. 1 and 2. Y

Each roller bearing 18 may comprise an elongated channel bar or cage 19 preferably formed of bent sheet metal having a plurality of spaced cylindrical rollers 20 revolubly retained between the parallel side 19 of said cage, said rollers 20 extending through suitable openings 19 in the cage 19 on which the door closures ride, as shown in Figs. 2 and 3.

Each cylindrical roller 20 may have the opposite bases 20 thereof provided with suitable recesses 20 adapted to receive indented portions 19 of the side walls 19 of the cage 19 for revolubly retaining the rollers in the cage. Said recesses 20 as here illustrated comprise annular grooves concentrically disposed with relation to the axis of the roller 19 and said. indented portion or depressions 19 may be formed to correspond to said annular grooves as shown in Figs. 1 and 3.

To construct tie improved roller bearing 20, the cage 19 is formed by cutting and bending suitable sheetmaterial in the usual manner, the rollers 20 having the annular grooves 20 are then inserted in proper position between the sidewalls 19 of the cage and the portions 19 simply indented or depressed into the recesses 20". The recesses 2O are preferably made with outwardly flaring sides 20 so that there is no tendency for the portion 19 to wedge in the recesses 20 when depressed therein.

It will be noted that the roller grooves 20 and indentations or depressions 19 do not normally serve as journal bearings for the rollers but simply guide and retain the latter in proper operative spaced relation, that is to say, the cage 19 and the rollers 20 are in non-journaled engagement with each other.

In the improved device, roller heerii'ig's 18 are provided, each having two or more rollers 20, and a cage '19 assen'ibled as shown in Fig. 2, the cage being made shorter than the width of the door closure 14. Each closure 14; adepted-to ride on the rollers 20 and on reciprocating said closures the roller bearings 18 will more in the direction of travel ofsaid closures but at a slower velocity as is wellunderstood.

I In Fig. is shown a modified, simplified form of the improved roller bearing 28 which is seen to coniprise side walls of the chzinnel cage esteemed as at 38. The latterv are adapted to extend into counterbored recesses30 in the ends Of an axial passage 30 of the roller 301 It will thus beiseejn that there is pri'ivided 1 device in which the several objects of this invention are echieved, and whichis well adapted to meet the conditions of practical use. 7 i p As varioiis possible einbodin ents might be made of the above invention, and as various changes n'iight be made in the embodiment above sot forth, it is to: be understood that all matter herein set forth or shown in the accompanying drawing is to be interpreted. as illustrative and not in a limiting sense.

Having thus described my invention, I claim new and desire to secure by Letters Patent:

1. In asliding door construction of the character described, a roller bearing comprising an elongated. channel-cage formed of sheet metal, and cylindrical rollers ha ing recessed portions on the plane faces thereof revolubly retained between the side walls of said cage, said walls being indented, to extend sntliciently into said recesses for loosely retaining the rollers in the cage.

In a sliding door construction of the character described, (L roller bearing coinprising an elongated. channel-cag and cylindrical rollers revoliibl'y retained between the side walls of said cage, said-rollers having recessed portions with outwardly flaring sides, said walls te -g ndered to extend. into said recesses for preventing the separation of the rollers from the cage,

whereby the cage is loosely cerried by said rollers.

In testimony whereof I affix my si na'ture.

LQUIS sUTinsR. 

